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What is the atomic number of a helium atom?
The atomic number of Helium is 2 because there are 2 protons and 2 electrons.
What is the atomic number for helium?
The atomic number of Helium is 2.
4.002 is the atomic mass of which element?
4.002 is the atomic mass of helium, element number 2 on the periodic table. It is a light, colorless, odorless gas that is the second most abundant element in the universe. Helium is commonly used in balloons and cryogenics due to its low boiling point.
What is the isotopic notation for helium-4?
The isotopic notation for helium-4 is ^4He. This notation denotes the element's atomic number and mass number, which for helium-4 are 2 (atomic number) and 4 (mass number) respectively.
What is the number of protons and neutrons in a helium isotope with an atomic mass of 6?
A helium isotope with an atomic mass of 6 would have 2 protons, as all helium atoms have 2 protons. To find the number of neutrons, subtract the number of protons from the atomic mass. So for this isotope, 6 (atomic mass) - 2 (protons) = 4 neutrons.
What is helium's atomic?
Helium's atomic number is 2 and its atomic mass is 4
What is the atomic number and mass of helium?
Helium is a metal element. Atomic number of it is 2.
What is the symobel and atomic number and atomic mass for helium?
Symbol: He atomic #: 2 atomic mass: 4.002602
What is the atomic number of a helium atom?
The atomic number of Helium is 2 because there are 2 protons and 2 electrons.
What is the mass number of helium atom?
The atomic number of helium is 2. Its mass is 4.002602 u ± 0.000002 u
What has got 4 mass number and 2 atomic number?
Helium
What is the atomic number for helium?
The atomic number of Helium is 2.
What is atomic weight of helium?
4.002602 g/mol
How do you calculate mass number of an atom?
The atomic mass is the number of protons plus the number of neutrons. The number of protons is identical to the atomic number (as well as electrons, but these don't matter right now). So, let's take helium. It has 2 protons and 2 neutrons, therefore the atomic mass # of helium is 4. Helium weighs 4 Atomic Mass Units (AMU).
4.002 is the atomic mass of which element?
4.002 is the atomic mass of helium, element number 2 on the periodic table. It is a light, colorless, odorless gas that is the second most abundant element in the universe. Helium is commonly used in balloons and cryogenics due to its low boiling point.
What element has the atomic number of 2 and the mass number of 5?
helium yo
How did the helium got the mass number 4?
helium has 2 protons and 2 neutrons. so its atomic number is 4
